Using Math to Analyze Data Answers

Error bars on four different data points are shown below.Which of these data points is the most reliable?

Precision can be defined as the

Which property of a measurement is best estimated from the percent error?

Rob measures the solubility of three different salts in water at 22°C. Which type of graph should he use to display his data?

A tree farm sells trees based on height in increments of 10 feet. Which graph would best show the current stock of trees?

In an experiment, Theresa measured 15.05 mL of water. She must have used a

The actual density of iron is 7.874 g/mL. In a laboratory investigation, Jason finds the density of a piece of iron to be 7.921 g/mL. What is the percent error that is associated with Jason’s measurement?

Which quantity is used to generate the error bars on a graph?

A teacher uses a bow and arrow to demonstrate accuracy and precision. She shoots several arrows, aiming at the exact center of the target each time. The drawing below shows where her arrows hit the target.Which statement best describes her shots?

A ruler has markings as shown below. Stefan uses this ruler to measure the length of a metal rod. How many decimal places should his answer include?